Implement Clone and Debug for Alphanumeric

src/distributions/other.rs

@@ -57,7 +57,7 @@ use std::mem::{self, MaybeUninit};
 ///
 /// - [Wikipedia article on Password Strength](https://en.wikipedia.org/wiki/Password_strength)
 /// - [Diceware for generating memorable passwords](https://en.wikipedia.org/wiki/Diceware)
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 pub struct Alphanumeric;